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Acrylate structure adhesive and preparation method thereof

A technology of acrylate and structural adhesives, applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problem of low toughness of the adhesive body, and achieve the improvement of elongation at break and tensile shear strength Effect

Active Publication Date: 2014-03-26
康达新材料(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the second-generation acrylic structural adhesives currently available on the market have a ratio of 1:1, and the bonding strength of the product is high, but the toughness of the adhesive body is not high, and the elongation at break is generally less than 5%. The industry proposes that in addition to high bonding strength, adhesives also need to have good long-term vibration resistance performance requirements

Method used

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  • Acrylate structure adhesive and preparation method thereof
  • Acrylate structure adhesive and preparation method thereof
  • Acrylate structure adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The formula of component A is as follows:

[0033]

[0034]

[0035] The formula of component B is as follows:

[0036]

[0037] The preparation method is as follows:

[0038] Mix and stir methyl methacrylate, hydroxyethyl methacrylate, trimethylolpropane trimethacrylate and methacrylic acid, add hydroquinone and EDTA-Na and stir, then add polyurethane modified acrylate, After the chloroprene rubber is dissolved evenly, add tertiary amine, pigment, gas phase white carbon black and other additives for vacuum defoaming to obtain component A.

[0039] Parameters of fumed silica CAB-O- The specific surface area of ​​TS-720 is 100±20m2 / g, and the pigment is milori blue.

[0040] Mix benzoyl peroxide, epoxy resin, and dioctyl terephthalate evenly, then add pigments, gas-phase silica additives, and vacuum defoaming to obtain component B.

[0041] The epoxy resin used in this formula is D.E.R.330 epoxy resin, the parameters of fumed silica CAB-O- TS-720 specific...

Embodiment 2

[0044] The formula of component A is as follows:

[0045]

[0046]

[0047] The formula of component B is as follows:

[0048]

[0049] Mix and stir methyl methacrylate, hydroxypropyl methacrylate, laurate methacrylate and methacrylic acid, add p-hydroxyanisole and EDTA-Na and stir, then add polyurethane modified acrylate, epoxy modified After the non-toxic acrylate and nitrile rubber are dissolved evenly, add N-methyl-N-hydroxyethyl p-toluidine, pigments, gas phase white carbon black and other additives for vacuum defoaming to obtain component A.

[0050] Parameters of fumed silica CAB-O- The specific surface area of ​​TS-720 is 100±20m2 / g, and the pigment is milori blue.

[0051] Mix benzoyl peroxide, epoxy resin, and dioctyl terephthalate evenly, then add pigments, gas-phase silica additives, and vacuum defoaming to obtain component B.

[0052] The epoxy resin used in this formula is D.E.R.330 epoxy resin, the parameters of fumed silica CAB-O- TS-720 specific...

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Abstract

The invention discloses a novel acrylate structure adhesive and a preparation method thereof. The two-component acrylate structure adhesive comprises components A and B, wherein the volume ratio of the component A to the component B is (10-2):1; the component A comprises 55 to 75 parts of acrylate monomer, 0 to 25 parts of toughening agent, 10 to 35 parts of oligomer, 0.1 to 5 parts of reducing agent, 0.1 to 2 parts of stabilizer, and 0.1 to 10 parts of aids; and the component B comprises 15 to 50 parts of oxidant, 15 to 25 parts of toughening agent, 15 to 50 parts of plasticizer, and 0.1 to 10 parts of aids. Compared with the conventional acrylate adhesive (SGA), the novel acrylate structure adhesive prepared by the method has the advantages that under the condition of guaranteeing the same tensile shear strength, the elongation at break is over 30%, which is much higher than the 5% of elongation at break of common acrylate adhesives available in the market.

Description

technical field [0001] The invention relates to the technical field of structural adhesives and preparation methods thereof, in particular to a novel acrylate structural adhesive and a preparation method thereof. Background technique [0002] The second-generation structural acrylate adhesive (SGA) is a reactive two-component adhesive, which has the advantages of high bonding strength, fast curing at room temperature, and oily surface bonding. It has been used in machinery, electronic appliances, railways, etc. for more than 30 years , Construction and other industries are widely used and developed rapidly. [0003] Most of the second-generation acrylic structural adhesives currently available on the market have a ratio of 1:1, and the bonding strength of the product is high, but the toughness of the adhesive body is not high, and the elongation at break is generally less than 5%. The industry proposes that in addition to high bonding strength, adhesives also need to have g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02
Inventor 郑耀卿魏国才陈勇李易陈云传姚其胜侯一斌
Owner 康达新材料(集团)股份有限公司